APA (7th ed.) Zitazioa
Gregory, A. (2000). Planning and managing public relations campaigns (2nd ed.). Kogan Page.
Chicago Style (17th ed.) Zitazioa
Gregory, Anne. Planning and Managing Public Relations Campaigns. 2nd ed. London: Kogan Page, 2000.
MLA (9th ed.) Zitazioa
Gregory, Anne. Planning and Managing Public Relations Campaigns. 2nd ed. Kogan Page, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.